Bump ansys-sphinx-theme from 0.12.3 to 0.12.4 (#2459)

Bumps [ansys-sphinx-theme](https://github.com/ansys/ansys-sphinx-theme) from 0.12.3 to 0.12.4.
- [Release notes](https://github.com/ansys/ansys-sphinx-theme/releases)
- [Commits](ansys/ansys-sphinx-theme@v0.12.3...v0.12.4)

---
updated-dependencies:
- dependency-name: ansys-sphinx-theme
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Camille <[email protected]>

pyproject.toml

@@ -75,7 +75,7 @@ doc = [
     "sphinx==7.2.6",
     "ansys-dpf-core==0.10.0",
     "ansys-mapdl-reader==0.52.20",
-    "ansys-sphinx-theme==0.12.3",
+    "ansys-sphinx-theme==0.12.4",
     "grpcio==1.51.1",
     "imageio-ffmpeg==0.4.9",
     "imageio==2.31.6",